Weiming Bone Conduction Glasses Wireless Bluetooth 4.0 Polarized Sunglasses Stereo Music Waterproof Headphones with Mic for iOS/Android Phone,Black
✪ Upgraded Bone Conduction Speaker-Unique sound insulation design reduces sound leakage by 87%. Due to the limitations of bone conduction technology, there is sound leakage in bone conduction products, and the sound quality is not much different from traditional headphones. Note: From a professional perspective, this is not a sound loss, but a second type of airborne sound wave propagation.
✪ High-performance and UV-resistant UV400-Made from naked eyeglasses, it has anti-glare, UV-proof, anti-fog functions and cares for your eyes. Equipped with Bluetooth 4.0, the Alien 5 (only weighs 45 grams) provides incredible all-day comfort and excellent multi-device connectivity. Rechargeable lithium battery (250mAh / 3.8V), charging time: 2 hours, standby time: 300 hours, playing music for about 3-4 hours (depending on the volume and sound source), continuous talking for about 4-5 hours.
✪OPEN EAR DESIGN-You can listen to music easily and hear the surrounding sounds to ensure safety while riding bicycles and other sports. It won't hurt your dangerous drum even if you wear it for a long time.
✪ Durability and safety-IP67 certified, sweat-proof, dust-proof and ear-free. Open your ears and be safe while driving. Worry-free 2 year warranty.
✪Water density and quality assurance-We use ergonomic design for all-day use. 100% quality guarantee. As a qualified bone conduction manufacturer, our products are tested by all professional instruments. If you need prescription myopia lenses, please contact me.